Hobatio j



UNITED STATES HOEATIO J. BREWER,

OF NEW YORK, N. Y.

GALVANHC BATTERY..

SPECIFICATION forming part of Letters Patent No. 391,505. dated October 23, 1888.

Application filed November 12, 1885. Serial No. 182,605. (No model.)

To @ZZ whom it may concern;

Be it known that I, HORATIO J. BREWER, of the city, county, and State of New York, have invented a new and useful Improvement in Galvanic Batteries, of which the following is a full, true, and exact description, reference being had to the accompanying drawings.

This invention relates to an improvement in galvanic batteries; and it consists, essentially, in an arrangement by which the zinc and carbon can be placed in advantageous relation to each other, and an arrangement by which a large amount of carbon surface can be ob tained, and by which likewise bodies wholly or partly of carbon can be readily attached to or removed from a central conducting carbon.

My invention will be readily understood from the accompanying drawings, in which- Figure l represents a cross-section of my completed battery; Fig. 2, a view of one of the plates; Fig. 3, a view ot'a modification of the plates.

In my drawings similar letters refer to similar parts.

A represents a battery-,jar provided with a suitable cover, B.

C represents the zinc element, which is preferably provided at its upper and lower ends with washers or bushings, which separate it from the surrounding carbon. These may be made of wood, though other suitable material may be employed. Surrounding the zinc rod i C is the hollow carbon rod D, the exterior section of which is slightly conical, as shown. A suitable electric connection, E, is applied to the upper end of this carbon. Upon this conical carbon connection are arranged a series of electro-negative plates, F, which may be of various constructions. These plates are arranged with central conical apertures corresponding to the cone of the central conductor, and when slid in the proper way upon the central conductor they present the appearance shown in section in Fig. 1. By this arrangement an absolute and intimate connection between the carbon cylinder D and the plate F can be obtained and retained. The carbon rod itself is provided with suitable apertures, G, at its lower end or elsewhere throughout its entire length, allowing of the circulation of the batteryliquid.

The carbon plates F are preferably provided with apertures H, extending through them vertically, and they are likewise preferably Y provided with bodies of a more strongly elec tro-negative character than the carbon itself inserted in the process of manufaetnrein suitable cavities in the carbon. For such material I prefer that heretofore patented to George L. Leclanch. As shown in Figs. 1 and 2,cups are made in the carbon disks and filled in the process of manufacture with the strongly electro-negative material, as shown at K. The holes H, instead of being cylindrical, may be of various shapes-as, for instance, the one shown in Fig. 3, at H', is a convenient form for man ufaeture. In this case pins having the shape of frusta of cones are inserted from the opposite sides in the process of manufacture of the plates and then withdrawn, leaving the openings of the shape shown in Fig. 3.

My plates are not necessarily provided with the cups or other cavities containing the electro-negative material but I find that by this construction I can readilyincrease the electromotive force of the battery.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of the co1iducting-carbon D, the electro-negative plates F,` provided with the inserted electro-negative bodies K, substantially as described.

2. The combination of the conducting-earbon D, the electro-negative plates F, provided with the inserted electro-negative bodies K, and apertures H, substantially as described.

HORATIO J. BREWER.

Witnesses:

GEO. H. Evans, WM. A. PoLLocK. 

